_:vb7280339 "While the RMT and ScotRail bash heads over the pay freeze, RMT guards based at Glasgow Central are already walking out, with strikes planned [...] in a dispute over \"abuse of disciplinary procedures\"."@en . _:vb7280339 "2020 December 2, Philip Haigh, \u201CA winter of discontent caused by threat of union action\u201D, in Rail, page 62:"@en .